> Anyone know if it has the same single point of failure issues as HDFS (NameNode)?
I think the NameNode SPOF issue in HDFS is also being dealt with:
"Prior to Hadoop 2.0.0, the NameNode was a single point of failure (SPOF) in an HDFS cluster.
[...] The HDFS High Availability feature addresses the above problems by providing the option of running two redundant NameNodes [...]"
Always cool to see different DFS options out there. That said, I personally won't find this very useful. It does not appear to have any POSIX support and thus only would work as a API/library accessible storage share. Hadoop at least has ways of mounting, although I personally haven't used them.
Wow, so bottom line
1. useful for Streaming cause of the nature of the file system.
2. Probably will loose the append nature of HDFS.
3. Retaining data in memory makes it hard to use with any of the hdfs based databases like hbase.
So raw map reducers should definately try it...